The position error coefficient of a system \(G\left( s \right) = \frac{1}{{\left( {s + 2} \right)\left( {s + 7} \right)}}\) with unity feedback is
1
0
2
∞
3
1/14
4
14/15
The position error coefficient of a system \(G\left( s \right) = \frac{1}{{\left( {s + 2} \right)\left( {s + 7} \right)}}\) with unity feedback is